/* 親の車、どうする — 世界観：実家の引き出しから出てきた茶封筒と車検証 */
:root{
  --paper:#f5eee0; --sheet:#fffdf7; --ink:#20262e; --sub:#59616b;
  --navy:#23395b; --stamp:#b5301c; --kraft:#c8a878; --kraft-d:#8a6c42; --line:#d8ccb4;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"BIZ UDPGothic","Hiragino Sans",sans-serif;font-size:17px;line-height:1.95}
a{color:var(--navy);text-underline-offset:3px}
a:hover{color:var(--stamp)}
img,svg{max-width:100%;height:auto}
.wrap{max-width:760px;margin:0 auto;padding:0 18px}

header.site{background:var(--navy);color:#fff}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:"Shippori Mincho B1",serif;font-weight:800;font-size:22px;letter-spacing:.04em}
.logo:hover{color:#fff}
.logo svg{width:38px;height:44px;flex:none}
nav.top{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}
nav.top a{color:#e7dcc6;text-decoration:none;border-bottom:1px solid transparent}
nav.top a:hover{color:#fff;border-bottom-color:#fff}

.crumb{font-size:13.5px;color:var(--sub);padding-top:14px}
.hero{padding:44px 0 18px}
.hero .eyebrow{display:inline-block;color:var(--stamp);border:2px solid var(--stamp);padding:0 10px;font-weight:700;font-size:14px;transform:rotate(-1.5deg)}
h1{font-family:"Shippori Mincho B1",serif;font-weight:800;line-height:1.4;letter-spacing:.02em;font-size:clamp(29px,6vw,42px);margin:14px 0 14px}
.lead{font-size:18px;margin:0 0 8px}

h2{font-family:"Shippori Mincho B1",serif;font-weight:800;font-size:25px;line-height:1.5;margin:48px 0 12px;padding-bottom:6px;border-bottom:3px double var(--kraft-d)}
h3{font-size:19px;margin:30px 0 6px;color:var(--navy)}
p{margin:0 0 16px}
main{padding-bottom:40px}
.meta{font-size:14px;color:var(--sub)}

/* 茶封筒 */
.envelope{position:relative;background:var(--kraft);padding:30px 22px 24px;margin:26px 0;box-shadow:4px 5px 0 var(--kraft-d)}
.envelope:before{content:"";position:absolute;left:0;right:0;top:0;height:16px;background:repeating-linear-gradient(90deg,var(--kraft-d) 0 2px,transparent 2px 9px);opacity:.55}
.envelope h2{margin-top:0;border:0;padding:0}
.sheet{background:var(--sheet);border:1px solid var(--line);padding:20px;box-shadow:2px 3px 0 rgba(60,40,10,.25)}

/* 診断 */
.q{margin:0 0 20px}
.q legend,.qtitle{font-weight:700;margin-bottom:8px;display:block}
fieldset{border:0;padding:0;margin:0 0 20px}
.opt{display:block;margin:6px 0}
.opt input{position:absolute;opacity:0;width:1px;height:1px}
.opt span{display:block;padding:11px 14px;background:#fff;border:2px solid var(--navy);cursor:pointer;line-height:1.5}
.opt span:hover{background:#efe6d3}
.opt input:checked + span{background:var(--navy);color:#fff;box-shadow:3px 3px 0 var(--stamp)}
.opt input:focus-visible + span{outline:3px solid var(--stamp);outline-offset:2px}
[hidden]{display:none!important}
#result{border-top:2px dashed var(--kraft-d);margin-top:18px;padding-top:18px}
#result h3{margin-top:0;font-family:"Shippori Mincho B1",serif;font-size:22px;color:var(--ink)}

/* 手順 */
ol.steps{list-style:none;counter-reset:s;padding:0;margin:18px 0}
ol.steps>li{counter-increment:s;position:relative;padding:0 0 18px 56px;margin:0}
ol.steps>li:before{content:counter(s);position:absolute;left:0;top:0;width:40px;height:40px;border:2px solid var(--stamp);color:var(--stamp);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:"Shippori Mincho B1",serif;font-weight:800;font-size:20px;transform:rotate(-6deg);background:var(--sheet)}
ol.steps>li:after{content:"";position:absolute;left:19px;top:44px;bottom:2px;border-left:2px dotted var(--kraft-d)}
ol.steps>li:last-child:after{display:none}
ol.steps b{display:block}

ul.doc{list-style:none;margin:12px 0 18px;padding:0}
ul.doc li{padding:7px 0 7px 30px;border-bottom:1px dashed var(--line);position:relative}
ul.doc li:before{content:"";position:absolute;left:4px;top:15px;width:14px;height:14px;border:2px solid var(--navy);background:#fff}

/* 止まれ */
.stop{background:#fff;border:3px solid var(--stamp);padding:16px 18px;margin:22px 0;position:relative}
.stop strong:first-child{color:var(--stamp);font-size:18px;display:block;margin-bottom:4px}

/* 表 */
.tbl{overflow-x:auto;margin:14px 0 20px}
table{border-collapse:collapse;width:100%;min-width:480px;background:var(--sheet);font-size:15px;line-height:1.6}
th,td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{background:#ebdfc8;font-weight:700}

/* カード */
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0}
.case{display:block;background:var(--sheet);border:1px solid var(--kraft-d);padding:16px;text-decoration:none;color:var(--ink);box-shadow:3px 3px 0 var(--kraft);transition:transform .08s}
.case:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--kraft);color:var(--ink)}
.case b{font-family:"Shippori Mincho B1",serif;font-size:19px;display:block;line-height:1.45;margin-bottom:4px}
.case small{font-size:14px;color:var(--sub);line-height:1.6;display:block}

.ad{background:#fff;border:1px solid var(--kraft-d);padding:14px 16px;margin:22px 0}
.ad .pr{font-size:12px;color:var(--sub);border:1px solid var(--sub);padding:0 5px;margin-right:6px}

.src{font-size:14px;line-height:1.75;background:#efe6d3;padding:14px 18px;margin-top:36px}
.src h2{font-size:17px;margin:0 0 6px;border:0;padding:0}
.src ul{margin:0;padding-left:18px}

footer.site{background:var(--navy);color:#e7dcc6;font-size:14px;padding:22px 0;margin-top:30px}
footer.site a{color:#fff}

@media (max-width:560px){
  body{font-size:16.5px}
  .cases{grid-template-columns:1fr}
  .envelope{padding:28px 14px 18px}
  .sheet{padding:16px 14px}
}